What is the class environmental science?
Envirnmental science studies issues related to health,disease, nuclear waste disposal, water resources, energy use, climate change
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About Climate Change
Climate change is a change in the earth's climate over a period of time. Though climate change can be caused by changes in the earth's orbit and other global events, 97 out of 100 scientists believe that current changes in Earth's climate, specifically global warming trends, are caused by man-made activity, particularly the burning of fossil fuels. (Proceedings of the Nat'l Academy of Scientists, 2010)
About Energy
Energy is used to do work. In our modern lives we are more and more preoccupied with finding new sources of energy to heat our buildings and move our machines, including cars. Since the dawn of the 20th century, fossil fuels have been the main way we get energy, but those forms of energy are causing environmental damage and leading to global warming. That is because the burning of fossil fuels releases carbon dioxide into the atmosphere. New forms of energy are being sought.
About Water
Water is by far the most important substance on Earth. Water covers over 70 percent of the planet and makes up between 50 and 75 percent of the human body. In fact, it's one of the only things we are positive needs to be present for life to exist. When scientists look for life in our solar system and on exoplanets, they are looking for liquid water.
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